From taxonomic deflation to newly detected cryptic species: Hidden diversity in a widespread African squeaker catfish
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F19%3A00511143" target="_blank" >RIV/60077344:_____/19:00511143 - isvavai.cz</a>
Alternative codes found
RIV/68081766:_____/19:00511143 RIV/00216224:14310/19:00108178 RIV/60076658:12310/19:43899776
Result on the web
<a href="https://www.nature.com/articles/s41598-019-52306-2.pdf" target="_blank" >https://www.nature.com/articles/s41598-019-52306-2.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s41598-019-52306-2" target="_blank" >10.1038/s41598-019-52306-2</a>
Alternative languages
Result language
angličtina
Original language name
From taxonomic deflation to newly detected cryptic species: Hidden diversity in a widespread African squeaker catfish
Original language description
Cryptic genetic diversity and erroneous morphological species determination represent frequent problems in biodiversity research. Here, examination of 138 specimens of Synodontis (Mochokidae, Siluriformes) from the Nile River and Lake Turkana revealed the presence of both S. schall-like and S. frontosus-like morphotypes, with a phenotypic gradient between them. We concluded phylogenetic and population genetic analyses based on two mitochondrial and one nuclear marker including 131 coxI (565 bp), 96 cytb (973 bp) and 19 RAG2 (896 bp) sequences from the Nile-Turkana population, plus additional GenBank data of Synodontis spp. Whilst nuclear data were inconclusive, mitochondrial sequences suggested that both morphotypes and intermediate forms are conspecific. The results imply probable synonymy of S. frontosus with S. schall. Conversely, a strong biogeographical signal was revealed among widely distributed and supposedly conspecific S. schall-like catfish of the Nilo-Sudanian ichthyological province. Synodontis schall sensu stricto (=Eastern clade), as defined by type locality in the Nile, is apparently restricted to the eastern part of the Nilo-Sudanian ichthyological province (e.g. Nile, Turkana, Chad). Synodontis schall Western clade (Senegambia, Niger, Chad) most probably represents a cryptic taxon, unrecognized thus far due to the absence of distinctive morphological differences.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10613 - Zoology
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Scientific Reports
ISSN
2045-2322
e-ISSN
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Volume of the periodical
9
Issue of the periodical within the volume
OCT 31 2019
Country of publishing house
GB - UNITED KINGDOM
Number of pages
13
Pages from-to
15748
UT code for WoS article
000493439600046
EID of the result in the Scopus database
2-s2.0-85074302357